<!doctype html>

<title>CodeMirror: Verilog/SystemVerilog mode</title>
<meta charset="utf-8"/>
<link rel=stylesheet href="../../doc/docs.css">

<link rel="stylesheet" href="../../lib/codemirror.css">
<script src="../../lib/codemirror.js"></script>
<script src="../../addon/edit/matchbrackets.js"></script>
<script src="verilog.js"></script>
<style type="text/css">.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}</style>
<div id=nav>
  <a href="http://codemirror.net"><img id=logo src="../../doc/logo.png"></a>

  <ul>
    <li><a href="../../index.html">Home</a>
    <li><a href="../../doc/manual.html">Manual</a>
    <li><a href="https://github.com/marijnh/codemirror">Code</a>
  </ul>
  <ul>
    <li><a href="../index.html">Language modes</a>
    <li><a class=active href="#">Verilog/SystemVerilog</a>
  </ul>
</div>

<article>
<h2>SystemVerilog mode</h2>

<div><textarea id="code" name="code">
// Literals
1'b0
1'bx
1'bz
16'hDC78
'hdeadbeef
'b0011xxzz
1234
32'd5678
3.4e6
-128.7

// Macro definition
`define BUS_WIDTH = 8;

// Module definition
module block(
  input                   clk,
  input                   rst_n,
  input  [`BUS_WIDTH-1:0] data_in,
  output [`BUS_WIDTH-1:0] data_out
);
  
  always @(posedge clk or negedge rst_n) begin

    if (~rst_n) begin
      data_out <= 8'b0;
    end else begin
      data_out <= data_in;
    end
    
    if (~rst_n)
      data_out <= 8'b0;
    else
      data_out <= data_in;
    
    if (~rst_n)
      begin
        data_out <= 8'b0;
      end
    else
      begin
        data_out <= data_in;
      end

  end
  
endmodule

// Class definition
class test;

  /**
   * Sum two integers
   */
  function int sum(int a, int b);
    int result = a + b;
    string msg = $sformatf("%d + %d = %d", a, b, result);
    $display(msg);
    return result;
  endfunction
  
  task delay(int num_cycles);
    repeat(num_cycles) #1;
  endtask
  
endclass

</textarea></div>

<script>
  var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
    lineNumbers: true,
    matchBrackets: true,
    mode: {
      name: "verilog",
      noIndentKeywords: ["package"]
    }
  });
</script>

<p>
Syntax highlighting and indentation for the Verilog and SystemVerilog languages (IEEE 1800).
<h2>Configuration options:</h2>
  <ul>
    <li><strong>noIndentKeywords</strong> - List of keywords which should not cause identation to increase. E.g. ["package", "module"]. Default: None</li>
  </ul>
</p>

<p><strong>MIME types defined:</strong> <code>text/x-verilog</code> and <code>text/x-systemverilog</code>.</p>
</article>
